<template>
    <div class="list-container" ref="FatherBrower">
        <div v-for="(i, index) in ListData" :key="index" class="list-item">
            <div class="list-item-info">
                <img class="list-item-info-img" :src="i.image || '/public/4.jpg'" >
                <div class="list-item-info-details">
                    <div class="list-item-info-title">内容: {{i.content || ''}}</div>
                    <div class="list-item-info-date">
                        日期: {{ i.date || ''}}
                    </div>
                    <div class="list-item-info-meta">
                        <div>{{i.kind || '层级'}}</div>
                    </div>
                </div>
            </div>
            <div class="list-item-func">
                <div v-for="(item,index2) in FuncColumn" :key="index2">
                    <button class="list-item-func-button" @click="item.onClick">{{ item.label }}</button>
                </div>
            </div>
  
        </div>
        <div v-if="ListData==undefined || ListData.length==0"
             style="text-align: center;user-select: none;">
            暂无数据~
        </div>
        <div class="brower-box" ref="BrowerBox"></div>
    </div>
  </template>
  
  <script setup>
  import { defineModel, defineEmits, onMounted, ref, reactive } from 'vue'
  const ListData = defineModel('ListData')
  const FuncColumn = defineModel('FuncColumn')
  const BrowerBox = ref(null)
  const FatherBrower = ref(null)
  const EMITS = defineEmits(['LoadMore'])
  const init_brower = () => {
    const target = BrowerBox.value
    if (!target) return;
    const observer = new IntersectionObserver((entries) => {
        entries.forEach(entry => {
            if (entry.isIntersecting) {
                EMITS('LoadMore')
            }
        });
    }, {
        rootMargin: '0px',
        threshold: 0.1
    });
    observer.observe(target);
  }
  

  onMounted(() => {
    init_brower()
  })
  </script>
  
  <style scoped>
  .list-container { 
  }
  
  .list-item {
    display: flex;
    min-height: 100px; 
    background-color: rgb(252, 247, 247);
    margin-bottom: 10px;
    justify-content: space-between;
    position: relative;
    border-radius: 8px;
    padding: 10px; 
    box-shadow: 0 2px 4px rgba(0,0,0,0.1); 
  }
  
  .list-item-info {
    width: 60%;
    display: flex;
    gap: 15px; 
    align-items: center;
    flex-grow: 1; 
  }
  
  .list-item-info-img {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 6px; 
    flex-shrink: 0; 
  }
  
  
  .list-item-info-details {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px; 
    flex-grow: 1; 
    overflow: hidden; 
  }
  
  
  .list-item-info-date {
    font-size: 0.9em;
    color: #555;
  }
  
  .list-item-info-meta {
    display: flex;
    flex-direction: row;
    gap: 8px;
    align-items: center;
    margin-top: 5px;
  }
  
  .list-item-info-meta > div {
    text-align: center;
    padding: 3px 8px; 
    background-color: #e9e9eb; 
    border-radius: 12px;
    color: #5c6170; 
    font-size: 0.8em;
  }
  
  .list-item-func {
    width: 30%;
    min-width: 150px;
    background-color: #f8f8f9;
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-shrink: 0;
    padding: 0 10px;
    border-left: 1px solid #eee;
  }
  
  .list-item-func-button {
    background-color: #dee3f1;
    color: rgb(48, 44, 44);
    border: none;
    border-radius: 5px;
    padding: 8px 12px; 
    cursor: pointer;
    font-size: 0.9em;
    transition: background-color 0.2s, color 0.2s;
  }
  
  .list-item-func-button:hover {
    background-color: #c8cee0;
    color: black;
  }
  
  .brower-box {
    height: 30px;
    width: 100%;
  }
  
  
  
  
  @media (max-width: 768px) {
    .list-item {
        flex-direction: column; 
        align-items: stretch;
        height: auto;
    }
  
    .list-item-info,
    .list-item-func {
        width: 100%; 
    }
    
    .list-item-info-img {
        width: 70px; 
        height: 70px;
    }
  
    .list-item-info-title {
        font-size: 1em; 
        white-space: normal; 
    }
    
    .list-item-info-meta {
        flex-wrap: wrap;
    }
  
    .list-item-func {
        margin-top: 15px; 
        padding: 10px 0; 
        border-left: none; 
        border-top: 1px solid #eee; 
        justify-content: flex-start; 
        gap: 10px; 
        flex-wrap: wrap; 
    }
  
    .list-item-func-button {
        padding: 6px 10px;
    
    }
  }
  
  
  @media (max-width: 480px) {
    .list-item {
        padding: 10px; 
    }
    .list-item-info {
        flex-direction: column; 
        align-items: center;
        text-align: center;
        gap:10px;
    }
  
    .list-item-info-img {
        width: 80px;
        height: 80px;
        margin-bottom: 10px;
    }
  
    .list-item-info-details {
        align-items: center; 
    }
    
    .list-item-info-title {
        font-size: 1.1em; 
    }
  
    .list-item-info-meta {
        justify-content: center;
    }
  
    .list-item-func {
        justify-content: center;
    }
    .list-item-func > div { 
    }
    .list-item-func-button {
      
    }
  }
  </style>